Improvement in burglar and house alarms



`ing to he a full, clear, and eXact descript-ion Afor the purpose of regulating the stroke of the i structionand operation, referring to theautric alarm. Fig. 2 represents a side elevation UNITED STATES RICHARD M. BILLINGS, OF TOYANDA, PENNSYLVANIA. i

IMPROVEMENT IN BURGLAR AND HOUSE ALARMS'.

Specification forming )fart of Letters Patent No. 146,641, dated JannaryZO, 1874; application filed June 27, 1813. t

To all whom it may concern:

Be it known that I, RICHARD M. BrLLiNGs, of Towanda, in the county of Bradford and State of Pennsylvania, have invented certain new and useful Improvements in Electric Alarms; and I do hereby declare the followof the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification. f

The nature of my invention consists in the construction of an improved direct-acting electric alarm, worked with a horizontal lever in a glass gong, thespring on the armature-lever and the glass gong being both adjustable lever in the gong. My invention also consists in combining, with a single battery and alarm apparatus, circuit and circuit-closing devices for a burglar-alarm at night, and circuit and circuit-closing devices for a day-bell or dooralarm, and a switch for throwing one system in and the other out of connection with the battery and alarm. It also consists in connecting the wires to a clock in the room, the face of said clock being perforated,withiu any one of which'perforations is placed a movable pin, so that as the hour-hand comes in contact therewith the circuit is closed, and the alarm caused to sound, all as more fully hereinafter set forth.l My alarm is worked on an open circuit.

'Io enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its con- .nexed drawings, in which- Figure l represents a plan' view of my elecof thesame. Fig. 3 represents a bottom view of the bed-plate of the alarm, showing the connections of the wires. Fig. 4 represents a view showing the connections to the door, window, clock, and alarm. Fig. 5 represents a circuit diagram of theY wires and their connections with the bed-plate of the alarm.

A is a horizontal lever, made of wood or metal, which is used to strike within a gong, H. .This gong I prefer to make of glass. The

lever A is hung upon the journal or shaft c, i

vD as to be secured to the same firmly by means of said adjustable screws and a bolt, the bolt passing through the glass gong and said post D, and an adjustable screw at each end of said bolt. B is an armature screwed on the top of the lever A at right angles thereto, and directly over the electro-magnets() C. a is a iiat spring on the lever A, andfselcured to the same by a screw at the end of lsaid lever. E is an angular standard arranged on the base G so as to comeover the lever A, and at such distance above it as to `all'ow the adjustable setscrew a2 to go throughlthe same and reach the spring af. al is (also a screw on said spring, which passes through the spring and into the lever A. Under the heardotA this screw al is a rubber washer, or any other elastic subst-ance, of any thickness required. By means of said adjustable screws aland a2, the length of the stroke of said lever A can be regulated as desired. m is a spiral spring, and 4n is a cordor wire, which are attached to each other. `'.lhe cord or wire n is `also attached to a screw-bolt, k', which passes through: the post D, and on the end of which isa nut, 7c, for adjusting the upward throw of the leverA. j p is an arm projecting downwardfrom the rear end of the lever A, and is provided? withfa hook at its end, to which. is connectedlthe spring m on the o is a con noting-wire, which y,

wire or cord n. k passes through the platform of the instrument, and is attached to the end of the lever A, at or near the shaft c. posts, erected at the four corners of the platform of the instrument. i and f are connecting-points, and g pivot for the switch h. This j switch is allowed to turn backward and forward on the connecting-points i and f, by means of which ythe circuit can be changed. The object of this two-pointed switch is to not The gong H is t F Fl F2 F3 are four bindingt only disconnect the alarm from electrical connection with the doors and windows during the day, but also to make use of the alarm for a door-bell by turning the switch upon the other point. Fig. 3 is a bottom View of said instrument, and-N Nl N2 N3 represent the bottom of the four binding-posts F F1 F 2 F3. 0 is the bottom ofthe standard E, and 111,452, and a the bottoms of the connecting-points fi g f, and n is the bottom ot' wire of coil C. o2 are connecting-points, so placed on vthe contact-plate of the -door-frame that, when the door is shut, it will come against said connectingpoints. A spring is screwed to the doortrame, and extends up to and against the point o2. \\'hen the door is closed, the spring is pressed down and entirely disconnected from the point o2, thus breaking the circuit; but the moment the door is opened in the least, so as to relieve the pressure on the spring, it will immediately come in contact with the point 02, and thus complete the circuit, and cause the armature-lever to strike in the glass gong till the dooris closed. t and t are connectingpointson the inside ot' a windo\\fralne. On the inside ofthe window-sash, on the same side ot' the window, is a piece of metal screwed to said sash, extending from the bottom ot' the trame up to and so nearly against the connecting-points t and t that, when the window is raised in the slightest, the said metal strip will come at once in contact with said connectingpoints, and cause the gong to strike till the window is lowered, and in case. any window is left up, or door open, as soon as the points are connected the gong will strike the alarm, and continue until the door or windows are closed. My clock'attachment is made by attaching a small wire to the brass or iron' frame which holds the works ot' the clock in place. I next connect a wire to the dial ot' the clock, which isunade'of zinc or other material which is a good conductor otelectricity. Small holes, aboutthe size of a pin, are punched in the dial around in the circle described by the hands.

` To set the alarm, all that is necessar)r is to stick a small metalplug (made of copper wire) into any otl the small holes inthe dial. The peg is made short, so that the minute-hand shall pass over it without touching it; but when the hour-hand, which is nearer the face ot' the clock, comes around, it strikes the pcg, and thus closes or completes the electric circuit, which before had remained broken, and

01 and sounds the alarm, which will continue kuntil the'pin is taken out, o r until the switch is turned on the alarm-stand. L and Z are connectii'lg-points attached to the battery, and, as shown in Fig. 4, are applicable on the outer frame of the door for use with the door-bell handle. l is a door bell crank or handle, which is arranged as a switch by means ot being hung at one end on a pivot at the connecting-point L, and when the other end, or the end of the knob of said handle, is brought onto l, (the other connecting-point,) the circuit is then complete, and the alarm will strike until the knob is removed from Z.

As heretofore stated, the said instrument is attached to a battery by means of two wires at any two of said binding-posts, which, together with the other posts, standard, and armaturelever, are made of east-steel or brass, or other conductible material. The arm h, or rather switch, can be left oft of either connecting-points i and f, so that the ala-rm will not strike at all.

Having thus fully described my invention, what -I cla-im as new, and desire to secure by Letters Patent, is-

l. The combination, in an electric alarm, ot a gong adjustable upon a vertical standard, and a horizontal and adjustable lever for striking the gong, all substantially as and for the purposes herein set forth.

2. The combination, with a single battery and alarm apparatus, of a circuit and circuitclosing devices for a burglar-alarm, and a circuit and circuit-closing devices for a day or door alarm, and a switch for throwing one system in and the other out of connection with the battery and alarm, substantially as and tor the purposes herein set forth.

8. The combination, with an electric alarm, of a clock connected to said alarm by wires, and provided with perforations on its face, within which a pin is inserted, and against which pin one of the clock-hands comes in contact, and thereby closes the circuit and causes the electric gong to sound, substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 26th day ot' June, 1873.

HGHARI) M. BILLINGS. Witnesses:

Gno. A. KING, ll. G. Moderne AL. 

